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I would recommend you reach out to a company called Chroma Service in Italy. Several of their employees came from Ryko Italia and they would be specialists on those machines. Salvatore and his team can be contacted at service@croma-croma.com

You didn't mention what model machine you are working on, but when the top brush "jumps", is an output coming on from the PLC of the machine to actuate the MAC valve? If so, then the program is likely controlling that "jump". If the TB is controlled via an air cylinder via belts, this sounds...

Before you remove the old PLC, you will want to write down the answers to all your setup questions:

To transfer the program, you will need a Mitsubishi FX-20P HPP with the proprietary RYKO software. The newer models (FX-30P) may also work, but they would also need the RYKO software and be in the FX2N mode. I've seen them on EBAY, but RDM may also have older ones. If you don't have the...

Make sure to use loctite on those bolts at the top of the brush core to ensure they stay firmly attached to the reducer flange. If you have customers running into the rear arm shafts, you may want to put bollards in place to help guide them more towards the center of the bay

Those dollies should work fine. When the machine is shipped, we use a metal angle-iron framework that bolts to the bottom edge of the frame, and it ties the arms in so they are closed. Then we have a set of dollies that are put in the 4 corners. If you want to keep the frame square, you could...

The arms are brought in through the air cylinders based on the pressures they are set to. The labels on the regulators should always be considered as the maximum. They should be adjusted to they bring the arms in smooth, but soft. Most front and rear arms operate best with their "air in"...

There are a lot of different things that could be possible. I would recommend you get an experienced tech out there to inspect the machine before you would reopen it to the public. The first thing I would recommend is that you try doing a brush wet down test in the test functions, and look at...

A code 8Y doesn't actually exist, so not sure why/how you would be seeing that. Where are you seeing it, on the 2 digit display, or in the HPP? We don't have any alpha characters in a 2 digit code, so if it's on the 2 digit display, sounds more like a bad display. The only place to...

I sent you a PM yesterday.

When the machine travels rear to front, the front arms should retract using the front arm return solenoid. While the gauge setting is 60PSI, it will usually be set a little less than 60 as normal return pressure. There is a small flow control valve used to soften the retract so they don't slam...

PM sent. I'll need your serial number to determine which side blaster manifold option you have in order to send drawings.

That's great news! If you are having issues with the retract, in addition to the retract pressure regulator and to the needle valve used to soften it, make sure the air cylinder hinge clevis pins are lubricated too. You should be able to shift those pins up/down to ensure good movement.

It depends on what type of coinbox you are using. If it is a Ryko coinbox, it's likely using network arming, so you would need to troubleshoot the network. If you are using someone else's activation, it should be sending a 24VDC signal to the PLC. Package 1 is input X30, package 2 is X31, etc...

If you are asking about the filter bag with the spring, that was P/N 11987-001, but unfortunately is no longer available. If you are asking about the 18-1/2" diameter dust bag option, while we don't have them, Vintage Parts has our older inventory and they have the 16941-001 bags in stock...

That part is available at Carolina Pride. The part number is KIT4-211-41, and includes the valve, actuator and GC valve. They do have them in stock.

Mike, you can try Wood Bros out of Lincoln, NE too. https://www.woodbrosind.com/home.php?cat=258

Typical stone chips, and agree with Dan there is no way the wash caused that. What I have seen is someone using the color-match waxes to hide imperfections, and any foam material can remove that which reveals them.

If your US2001 OHD is a unit with trolley ultrasonic sensors, is your PLC output Y32 on, or is Y31 on instead? Y32 is control power and needs to be on for the coinbox to detect the machine is ready to wash. A code 74 should clear on it's own if the sensors are OK once it runs a complete wash...

We are hoping to have it available, but not initially.